Besides the obvious model number, what are the differences in hardware and firmware between the two.
They seem identical my cousin has the galaxy note 2 at&t and I have the i605 Verizon gn2 maybe the network receivers are different
Sent from my SCH-I605 using XDA Free mobile app
drarkanex said:
Besides the obvious model number, what are the differences in hardware and firmware between the two.
Click to expand...
Click to collapse
A lot...Verizon (and Sprint) uses CDMA frequencies and radios and AT&T (and T-Mobile) uses GSM frequencies and radios
KennyG123 said:
A lot...Verizon (and Sprint) uses CDMA frequencies and radios and AT&T (and T-Mobile) uses GSM frequencies and radios
Click to expand...
Click to collapse
I understand the obvious here but I currently have the verizon 605 and I'm on at&t so it would seem that it can be on any carrier considering the n2 uses a lot of freqs. I'm talking about actual hardware differences. I might need to do some research on my own with this one. But if anyone else can help with this would be appreciated.
drarkanex said:
I understand the obvious here but I currently have the verizon 605 and I'm on at&t so it would seem that it can be on any carrier considering the n2 uses a lot of freqs. I'm talking about actual hardware differences. I might need to do some research on my own with this one. But if anyone else can help with this would be appreciated.
Click to expand...
Click to collapse
Verizon model doesn't have what it needs to be on AT&T LTE. I believe the way the memory is partitioned is different as well.
Just out of curiosity, why are you wanting to know?
Sent from my SCH-I605 using XDA Premium 4 mobile app
BluGuy said:
Verizon model doesn't have what it needs to be on AT&T LTE. I believe the way the memory is partitioned is different as well.
Just out of curiosity, why are you wanting to know?
Sent from my SCH-I605 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I am a hardware guy. I'm also considering finding out how they tick and make my own custom rom to maybe figure this out and streamline a rom that will be custom only to the note 2 regardless of carrier. i mean its out there that the note 2 will work on any carrier regardless of model because I'm on my 605 running an att rom on att carrier.
drarkanex said:
I understand the obvious here but I currently have the verizon 605 and I'm on at&t so it would seem that it can be on any carrier considering the n2 uses a lot of freqs. I'm talking about actual hardware differences. I might need to do some research on my own with this one. But if anyone else can help with this would be appreciated.
Click to expand...
Click to collapse
The main differences are the included radios
Verizon: http://www.phonescoop.com/phones/phone.php?p=3926
AT&T: http://www.phonescoop.com/phones/phone.php?p=3918
Of course firmware will be very different because of interfacing with the radios
KennyG123 said:
The main differences are the included radios
Verizon: http://www.phonescoop.com/phones/phone.php?p=3926
AT&T: http://www.phonescoop.com/phones/phone.php?p=3918
Of course firmware will be very different because of interfacing with the radios
Click to expand...
Click to collapse
^ Thanks for this.
Thinking out loud here, not sure why Samsung wouldn't be able to have one radio that can handle all those different LTE bands. Perhaps this is intentional based on requests from US carriers?
devious_z said:
^ Thanks for this.
Thinking out loud here, not sure why Samsung wouldn't be able to have one radio that can handle all those different LTE bands. Perhaps this is intentional based on requests from US carriers?
Click to expand...
Click to collapse
Yes...that sounds like something they would request to try and keep you tied to their carrier or make you buy one of their phones when moving to them.
devious_z said:
^ Thanks for this.
Thinking out loud here, not sure why Samsung wouldn't be able to have one radio that can handle all those different LTE bands. Perhaps this is intentional based on requests from US carriers?
Click to expand...
Click to collapse
KennyG123 said:
Yes...that sounds like something they would request to try and keep you tied to their carrier or make you buy one of their phones when moving to them.
Click to expand...
Click to collapse
Hmm I am confused here.. doesn't the Verizon note 2 have both GSM and CDMA capabilities, that why is considered a World phone..
I'm pretty certain the main differences is firmare and not hardware. I'll have to check those links Kenny..
I know of people running t mobile on a Verizon note 2 that have everything working perfectly fine and t mobile is GSM. Pop the Sim in, switch mobile networks to GSM, maybe edit apns for lte..but I don't even thunk that is needed once the GSM Sim is in place. This unlocks the add apn feature under access points
lacoursiere18 said:
Hmm I am confused here.. doesn't the Verizon note 2 have both GSM and CDMA capabilities, that why is considered a World phone..
I'm pretty certain the main differences is firmare and not hardware. I'll have to check those links Kenny..
I know of people running t mobile on a Verizon note 2 that have everything working perfectly fine and t mobile is GSM. Pop the Sim in, switch mobile networks to GSM, maybe edit apns for lte..but I don't even thunk that is needed once the GSM Sim is in place. This unlocks the add apn feature under access points
Click to expand...
Click to collapse
Yes, look at the specs...it has GSM radio too with some frequencies. And no, you cannot flash AT&T firmware on a Verizon phone and have a perfectly working AT&T phone.
KennyG123 said:
Yes, look at the specs...it has GSM radio too with some frequencies. And no, you cannot flash AT&T firmware on a Verizon phone and have a perfectly working AT&T phone.
Click to expand...
Click to collapse
No I know that.. I am not saying flashing att firmware would work out of the box, so they say.. I am aware of what it takes to port different firmwares
I'm saying using a att or t mobile Sim is possible.. maybe I wondered off the op's topic here..sorry about that
drarkanex said:
I am a hardware guy. I'm also considering finding out how they tick and make my
own custom rom to maybe figure this out and streamline a rom that will be custom only to the note 2 regardless of carrier. i mean its out there that the note 2 will work on any carrier regardless of model because I'm on my 605 running an att rom on att carrier.
Click to expand...
Click to collapse
This is possible.. but not without a pretty intense aroma installer..you'll need to separate different csc features, apps, frameworks, permissions, libs, build.props and vender folders. .but yea. Would be a pretty big task and knowledge of all the carriers
lacoursiere18 said:
I know of people running t mobile on a Verizon note 2 that have everything working perfectly fine and t mobile is GSM. Pop the Sim in, switch mobile networks to GSM, maybe edit apns for lte..but I don't even thunk that is needed once the GSM Sim is in place. This unlocks the add apn feature under access points
Click to expand...
Click to collapse
Thank you for this tidbit of info. I'm currently trying to figure a way to get my old VZW Note 2 working on Straight Talk for my Dad, who's currently using a 3" Samsung something-or-other P.O.S. I'm going to get the AT&T version of the Straight Talk SIM and try it out since some have reported success with it. If not that one, then maybe the T-Mobile one.
I'll post back with my results (5-10 business days for delivery--yikes!)
P.S. Anyone else out there have a recommendation for a ROM to use for this? I'm going to go with something 4.1.x because I've read that later versions won't work. Jedi X maybe?
Related
In case anyone's interested...
http://content.modaco.net/EPE54BvsERE36B.html
P
Can anyone tell us little people what this means?
i think the blue highlighted lines are the changed files
Yeah, do tell in layman terms to us "smallies" ;-)
//Å
White = matching, green = changed.
P
Interesting to note a file for AT&T compatability in this build!
P
paulobrien said:
Interesting to note a file for AT&T compatability in this build!
P
Click to expand...
Click to collapse
Wonder what that addition does.
jchap2k said:
Wonder what that addition does.
Click to expand...
Click to collapse
maybe it support at&t 3g
i can dream
Nobody seem to have noticed that EPE54B is signed with test-keys and ERE36B with release keys...
Are the apk's also not throwing a lot of useless debug output ?
Not running it!
In my experience most of android throws out useless debug crap.
P
hjlow said:
maybe it support at&t 3g
i can dream
Click to expand...
Click to collapse
Won't happen on the devices released to the public because our radio isn't capable of using the ATT3G bands, but they may be releasing a flavor that's compatible with ATT.
Just a guess.
tokyomonster said:
Won't happen on the devices released to the public because our radio isn't capable of using the ATT3G bands, but they may be releasing a flavor that's compatible with ATT.
Just a guess.
Click to expand...
Click to collapse
Couldn't this just be resolved with a radio update from Google. I mean GSM is GSM, it's about receiving the right bandwidth which is controlled by the radio. Unless I am missing something, I believe google could push out an update for the radio that supported both TMO and ATT's 3G bandwidth.
You need the right antennas. Hardware.
P
paulobrien said:
You need the right antennas. Hardware.
P
Click to expand...
Click to collapse
That's too bad...
Since we're on the subject...will ATT's radio support TMobile bands?
SiNJiN76 said:
Since we're on the subject...will ATT's radio support TMobile bands?
Click to expand...
Click to collapse
No, ATT and t-mobile run their 3G on complete different bands, so there's no compatibility between the two with existing hardware(that I know of).
Of course voice and EDGE will still function fine on the same phone between both carriers, but you'll need a phone that supports the specific bands for the carrier you're intending to use 3G on if you want it to work.
tokyomonster said:
No, ATT and t-mobile run their 3G on complete different bands, so there's no compatibility between the two with existing hardware(that I know of).
Of course voice and EDGE will still function fine on the same phone between both carriers, but you'll need a phone that supports the specific bands for the carrier you're intending to use 3G on if you want it to work.
Click to expand...
Click to collapse
I'm sure he was just pulling your leg... no one's stupid enough to ask that question when it's been answered repeatedly, most recently two posts above his own.
Please help as I need to flash or unlock the us cellular note 2 to use on Verizon. Is it possible and if so how do I go about doing it? Please help!! Thank you!
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2
This is not an easy task. Unless you know someone that has access to Verizons databases, you can't activate the phone on Verizon.
Don't quote me on this, but I don't think that phone supports Verizons bands.
Sent from my Galaxy Nexus using xda app-developers app
OK. I agree not easy. Any thoughts on being able to flash with CDMA WORKSHOP? I really need help if you or anyone has thoughts or ideas please get back to me. I appreciate it!
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2
Activation is all through the SIM card for LTE phones. Odds are, the USC version doesn't support the proper LTE bands to work. I also think you're going to have problems using the CDMA network as well, even if the SIM card is recognized.
Sent from my Galaxy Nexus
tennisjunkie said:
OK. I agree not easy. Any thoughts on being able to flash with CDMA WORKSHOP? I really need help if you or anyone has thoughts or ideas please get back to me. I appreciate it!
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2
Click to expand...
Click to collapse
It will most likely be impossible and that's if the phone supports the same bands lol. Why not just sell it and by a vzw one?
Sent from my Nexus 7 using XDA Premium HD app
welll ........try this
first is it unlocked and if so do this set it to global sim add apns (get on google) buy titainium backup root (oh you do have to have root ) also pop in sim if you have service bars check for the apn"s if you dont have them downloan apn manager convert it to system app through titainium b. then put sim in and reboot point i am not responseable if damage occurs ... but it shouldnt so you can you tube it to hope that helps you :good:
Nor for sure if it's possible with custom flashing but it's not stock. The note that I saw was heavily locked down. It had a sim card slot but that was about it.
Sent from my SCH-I605
First of all.... looking at this link below.... the SCH-i605 and the SCH-R950 are on the same bands.
http://www.gsmarena.com/samsung_galaxy_note_ii_cdma-5152.php
Second, I am also attempting to get this working myself. The SIM Card is not even recognized. I have my SIM from my Nexus and it still Says No SIM.
Anybody else want to lend some advice? I too would like this working.
A little more research. US Cellular did not want to give up their information to "Unlock the phone". Verizon's SIM does not work with the US Cellular stuff on the phone. It looks like that the partition needs to be setup with the Verizon PIT file. Once it is re-partitioned, then the rest of the phone should be able to be flashed to Verizon.
Am I far off base? Has anyone had success with Re-partitioning? The last 2 tries, it hangs at Get PIT for mapping.... or something like that.
nitro66215 said:
A little more research. US Cellular did not want to give up their information to "Unlock the phone". Verizon's SIM does not work with the US Cellular stuff on the phone. It looks like that the partition needs to be setup with the Verizon PIT file. Once it is re-partitioned, then the rest of the phone should be able to be flashed to Verizon.
Am I far off base? Has anyone had success with Re-partitioning? The last 2 tries, it hangs at Get PIT for mapping.... or something like that.
Click to expand...
Click to collapse
Seems a little off that the partitions would be different.
I imagine it is CSC and maybe even EFS related.
Do you have a USC pit file? I'll compare it to the verizon one.
That's another issue. I don't have a USC Pit file.
I found an R950 firware update that may have the necessary PIT and CSC files. It's extremely slow... might not get back to this until late tomorrow.
Not included. Like I said before, the verizon PIT hangs at Get PIT for mapping on the R950. If someone can provide that file, I'm curious if it will get past that point.
Sent from my SCH-I605 using xda app-developers app
Won't work without heavy SW work at the modem level and kernel. For 2/3G, they share the same bands (PCS/Cellular). LTE is on completely different bands (Verizon is on Band 13, U.S. Cellular is on Bands 2,4,5 and 12). Therefore, if you could hack it enough to get it to accept modified VZ SW, it would only work on 2/3G.
First up sorry to dig it out of the grave
but i saw some utterly famous guyz replying so thought of dropping my query as well.
I am gonna get a USC Note 2 , though i will primarily use it on cdma , but i was wondering if now ( its been a month since last reply in this thread )
the phone can be unlocked and can be used on a gsm network outside of country ,
i wish to just pop in any gsm sim in it when i am abroad and use that on it.
or if there i a way to make it work with the cdma sims outside of US.
would be grateful if anyone can shed any light.
thanks
lord dredd said:
First up sorry to dig it out of the grave
but i saw some utterly famous guyz replying so thought of dropping my query as well.
I am gonna get a USC Note 2 , though i will primarily use it on cdma , but i was wondering if now ( its been a month since last reply in this thread )
the phone can be unlocked and can be used on a gsm network outside of country ,
i wish to just pop in any gsm sim in it when i am abroad and use that on it.
or if there i a way to make it work with the cdma sims outside of US.
would be grateful if anyone can shed any light.
thanks
Click to expand...
Click to collapse
I believe that the USC Note 2 is unlocked for GSM sim cards. I will know in about 5 weeks. I plan on testing my "testing" USC Note 2 while abroad. If it works, I will let you know.
I would still like to get it to recognize my VZW Sim card. Ugh!
lord dredd said:
First up sorry to dig it out of the grave
but i saw some utterly famous guyz replying so thought of dropping my query as well.
I am gonna get a USC Note 2 , though i will primarily use it on cdma , but i was wondering if now ( its been a month since last reply in this thread )
the phone can be unlocked and can be used on a gsm network outside of country ,
i wish to just pop in any gsm sim in it when i am abroad and use that on it.
or if there i a way to make it work with the cdma sims outside of US.
would be grateful if anyone can shed any light.
thanks
Click to expand...
Click to collapse
It is unlocked for GSM bands domestic and internationally on supported frequencies.
For Domestic GSM/UMTS/HPSAP+ bands ( you ARENT locked to 2G , but you need to be on refarmed 1900MGHz bands for H+ in your area) I suggest taking a look at JellyBeans ROm 13 or 14.... Supports GSM bands and APN editor . I have my Verizon sch-i605 running on TMobile at 6MB+ down and 2MB+ up with text and mms with no problems at all.
TMO has no contract plans from $50-$70
Simple Mobile has plans from I thin $30-$60
both with 4G (AKA HSA+)
Its not an issue with verizon variant, but us cellukar vwrsion is tricky. Inserting an international gsm sim only shows unsupported
sent from my NOTE II
nitro66215 said:
A little more research. US Cellular did not want to give up their information to "Unlock the phone". Verizon's SIM does not work with the US Cellular stuff on the phone. It looks like that the partition needs to be setup with the Verizon PIT file. Once it is re-partitioned, then the rest of the phone should be able to be flashed to Verizon.
Am I far off base? Has anyone had success with Re-partitioning? The last 2 tries, it hangs at Get PIT for mapping.... or something like that.
Click to expand...
Click to collapse
RE: As of 9-13-13, no luck still with Re-Part. working on clients R950 trying without root is the goal, but appears it is the only way. Manual Programming is also difficult. VRZ's pit file i605 won't map on R950. Soft bricked the phone after each attempt. Both phones operate on same bands for sure, but must have providers software installed for the LTE card to work. Not even sure how stable a root would be, but not going to attempt on clients phone......
DrcJr77 said:
RE: As of 9-13-13, no luck still with Re-Part. working on clients R950 trying without root is the goal, but appears it is the only way. Manual Programming is also difficult. VRZ's pit file i605 won't map on R950. Soft bricked the phone after each attempt. Both phones operate on same bands for sure, but must have providers software installed for the LTE card to work. Not even sure how stable a root would be, but not going to attempt on clients phone......
Click to expand...
Click to collapse
Attempted something similar today, was told the phone does not contain a CDMA radio so no go for service of any type because it does not support the same LTE band also.
Even if you managed to get the radio working, the Verizon rep said that the phone is not on their list of allowed devices and a SIM would not activate over their network.
Does anyone know if the One from AT&T will work with Aio Wireless? They're a MVNO subsidiary under AT&T (www.aiowireless.com). I would think it would, but I'd like to be perfectly sure before shelling out the money to purchase one. TIA.
ArmyAg08 said:
Does anyone know if the One from AT&T will work with Aio Wireless? They're a MVNO subsidiary under AT&T (www.aiowireless.com). I would think it would, but I'd like to be perfectly sure before shelling out the money to purchase one. TIA.
Click to expand...
Click to collapse
I would believe so since Aio uses AT&T towers and the same frequency bands, My best guess would be yes cause all they would do is just put the imei into the system and the new or existing sim card number and done!
Vicpdx18 said:
I would believe so since Aio uses AT&T towers and the same frequency bands, My best guess would be yes cause all they would do is just put the imei into the system and the new or existing sim card number and done!
Click to expand...
Click to collapse
That's what I figured but wanted to make sure I wasn't thinking crazy.
ArmyAg08 said:
That's what I figured but wanted to make sure I wasn't thinking crazy.
Click to expand...
Click to collapse
Yes it will. If you have any issues just change the APN settings like any GSM phone. Also AIO Wireless is owned by att as well. They are currently testing it out from what I hear. Only a few cities right now.
Background: Work bought me an S4, but they use Verizon...I use T-Mobile. I must solve this issue. (Plus it's been so long that since I've even opened my QXDM/QPST that I almost...almost forgot how to use it, man, I miss it)...
This is more of a running log to potentially help others in their endeavors. This is an advanced topic...by today's standards. There is a LOT you need to know before just jumping in on this...unless you're like me and don't mind bricking a device for the sake of learning...then, carry on.
BTW, As you can clearly tell..I don't do super formatted frilly assed colorful posts...
ONWARD!!
What is known so far:
1. The modem MDM9615m is capable of anything...(Maybe even making you tea).
2. Using either 2009031920090615 or 2010031619780721 as the 16 digit PW in QXDM allows you to use "Software Backup" to backup and restore QCN files...(Both work, only one puts the phone offline)
4. The AWS band method that is floating around here (337_aws.qcn) doesn't work...it actually breaks the phone. (more on that later)
5. Putting your backup on again leaves whichever fields the 337 file had intact...so say you put the 337_aws.qcn file onto the phone, it stops working...however, you restore your backup...and the phone starts working again but all the fields of the NV that were written by the 337 file remain. Though phone functionality is restored.
6. MDK or ME7...doesn't matter at this point...no effect on functionality.
7. Flashing an MD1 modem/NV Backup from a T-Mobile Note II (which also has the 9615 doesn't seem to work...yet)...It actually kills the phone...I'll update when/IF I revive it...
8. You can Odin your modem back...whew!
What needs to be explored:
1. Whether or not flashing (shoehorning) another carriers radio will help (or if it's even an option)...this would probably have to be a regional carrier or maybe an international (non US) carrier's radio. Usually the bigger carriers can tell the manufacturer what to leave out/put into their phone...
2. Which NV Items need to be modified in order to get AWS (maybe even LTE) working.
3. Can a backup of another phone....let's sayyyy a T-Mo S4...be made and dumped onto the i545.
4. What complications are there? Is this permanent, can the phone be put back to "normal"? etc. etc.
5. If, as a last resort, we can edit the current parameters that are in the NV of a stock i545 to simply "reroute" (work with me here)...what bands it uses for which function...(this is the most tedious...but most undoable method...that I can think of....so far).
Troubles I've already ran into:
As mentioned before...after you write the 337_aws.qcn file to the phone it's pretty much set in stone...for now. When this happens, the modem starts boot looping...I'm sure this is due to bad parameters since the 337_aws.qcn file was probably from a 9215, i545 uses a 9615...you will not be able to access it again in QPST/XDM...
You'll have to get into Settings, More Networks, Mobile Networks, Network Mode, and select GSM/UMTS...this will keep the modem alive for you to be able to play with it again.
So far that's it. I've only been able to start messing with this phone in the past day or so...so, I'm sure this thread will be my dumping ground for my progress/findings/ideas...etc. Again, I encourage anyone that wants to help....to do so. I'm always open for collaboration.
This is where I start filtering down and organizing what I'm doing.
I believe that the best course of action right now is to utilize the 9615m radio from a Note 2...and perhaps a ROM from a T-Mo S4...
The main reason is because when you flash the 9615 modem but still use a VZ Rom...it tries to force it into a "WCDMA Preferred" selection. Which as we know...isn't an option in the menu. However, it's still trying...but I think the ROM doesn't know what to do at that point (could be way off here). I'm thinking that there has got to be a specific combination that needs to be used....for example...a Note 2 modem with a Tmobile ROM and NV backup? or that...but with a VZ NV backup...
I'm not a programmer/rom guy, (I'm more RF engineering etc...), so I don't know if there are things in the ROM itself that dictate which options are available and how the modem is used...
More exploration to be done...
Build.prop indicates to the system what network options should be available
Tmo rom looks like the way to go
On these newer phones the modem dictates pretty much everything else network-wise
CNexus said:
Build.prop indicates to the system what network options should be available
Tmo rom looks like the way to go
On these newer phones the modem dictates pretty much everything else network-wise
Click to expand...
Click to collapse
That's good information....I tried running Paranoid Android but it wouldn't boot and any other rom told me that the device ID was wrong. I'm going to look into bypassing that check and try some more...
It hasn't been fully proven/disproven but it seems that there may be a "hard" block for US CDMA devices to use US GSM.
It can certainly see it but won't connect based on the threads I read.
But I don't think anyone has documented it in thorough detail what has and has not been tested.
Now if that setting is in NV data and can be modified... you may have a shot.
But if it's something hard coded and/or physical (QFuse) it may not be possible.
Q: Would it not be easier to find someone to swap with you? Or sell the device and get a Tmo?
garwynn said:
Q: Would it not be easier to find someone to swap with you? Or sell the device and get a Tmo?
Click to expand...
Click to collapse
Haha, leaps and bounds! easier, but what's the fun in that? How will we learn what can and can't be done if we take the easy way? Plus...maybe someone runs into a stellar deal and can't afford a full priced S4...they might nab a VZ one for cheap...this could potentially help a lot of people...
This is more to learn than anything...
Any progress?
Any progress with this? I'm in the same boat.
Thats a shame. Would be nice to have found out if a CDMA S4 could be fully used with GSM network.
blackhand901 said:
Any progress with this? I'm in the same boat.
Click to expand...
Click to collapse
---------------------------------------------
ThunderBob
Galaxy S4 SGH-M919 - GoldenEye 8.0 - XXUDMI1
HTC One - Stock
blackhand901 said:
Any progress with this? I'm in the same boat.
Click to expand...
Click to collapse
I've been stalking the internet for weeks to try and see if i can pick up all of T-Mobile's hspa frquencies in my area cause I'm tired of edge and I know the hardware is there i just don't want a brick. would rather 2g over a brick.
I have been on tmobiles 4g network with my i545 for 2 weeks now... I have had zero issues.
You an only get
justda said:
I have been on tmobiles 4g network with my i545 for 2 weeks now... I have had zero issues.
Click to expand...
Click to collapse
HSPA on this divi e. Not LTE.
It makes me confused that band 4 LTE is locked on the phone
I always thought verizon had the open access regulation from FCC and that's the reason all verizon LTE phones are gsm unlocked
in fact some posts indicates it's CDMA unlocked also. Some CDMA carriers use R-uim card such as China telecom,and people were able to insert the ruim and have cdma working.
From this post, it seems verizon only had the regulation on LTE 700 band 17, not AWS band 4?
or is it just because verizon hasn't really deployed AWS LTE yet, so the relative software hasn't been released yet?
michael3770 said:
It makes me confused that band 4 LTE is locked on the phone
I always thought verizon had the open access regulation from FCC and that's the reason all verizon LTE phones are gsm unlocked
in fact some posts indicates it's CDMA unlocked also. Some CDMA carriers use R-uim card such as China telecom,and people were able to insert the ruim and have cdma working.
From this post, it seems verizon only had the regulation on LTE 700 band 17, not AWS band 4?
or is it just because verizon hasn't really deployed AWS LTE yet, so the relative software hasn't been released yet?
Click to expand...
Click to collapse
just for clarification, Verizon uses LTE 700 B13 not B17. According to Samsung and some other website Verizon S4 support LTE B4 and B13. and according to the guy in this post http://forum.xda-developers.com/showpost.php?p=44206677&postcount=20 he is using or have used VZW S4 on T-mobile LTE.
This is one of the oddest things I've ever run into.
I can put a T-Mobile Sim in the phone and it works almost like it was a Verizon Sim with the exception of needing to switch it to global mode when prompted.
If I stick a GSM Metro PCS Sim that I am currently using on the M919 it wont connect to anything except Wifi.
I hate locked bootloaders.
What about with custom roms?
dennis5pia said:
just for clarification, Verizon uses LTE 700 B13 not B17. According to Samsung and some other website Verizon S4 support LTE B4 and B13. and according to the guy in this post http://forum.xda-developers.com/showpost.php?p=44206677&postcount=20 he is using or have used VZW S4 on T-mobile LTE.
Click to expand...
Click to collapse
Sorry that was a typo, yep att use b17 and vzw use b13
Verizon is going to deploy a second LTE network using AWS spectrum in congested areas
Why you guys don't install "android data tool" to be able to enter the *#*#4636#*#* menu so you could set LTE only to see if Verizon S4 pick up T-Mobile LTE?
If you are rooted and have access to write system data you could edit the "sale_code.dat" file under system/csc and change from VZW to SPR, AWS or any other code, so you can have more network mode options under mobile network settings.
Just for some clarification... This is done on Stock Touchwiz rom or is the device rooted and / or rommed and loki-d
Thanks,
Eric
So I can put a verizon sim card in my tmobile Gs4?I thought Verizon didnt use sim cards like tmobile and at&t.my tmobile Gs4 is unlocked so basically I just need a Verizon sim card and a Verizon plan. Thanks!!!
Sent from my SGH-M919 using xda app-developers app
I don't think that works that way. Verizon is a CDMA carrier and T-Mobile a GSM carrier. Verizon sim card is for LTE only (LTE is GSM based technology). Voice works over CDMA radio which T-Mobile S4 lack of it. T-Mobile sim works on Verizon S4 because Verizon S4 is CDMA/GSM/LTE capable.
xda23 said:
So I can put a verizon sim card in my tmobile Gs4?I thought Verizon didnt use sim cards like tmobile and at&t.my tmobile Gs4 is unlocked so basically I just need a Verizon sim card and a Verizon plan. Thanks!!!
Sent from my SGH-M919 using xda app-developers app
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Can this be done? I ask because I am using the T-Mobile version on AT&T. LTE reception is not bad, it just can be better, especially in low signal areas? Does anyone have any information flashing the G900A modem for T-Mobile? I have searched and can't seem to find anything on this.
Radio and antenna wise, I believe they are the same device specs, so not like a number of years ago where there were antenna differences between them. T-Mobile radio supports all of T-Mobile and AT&T, AT&T radio however only partially supports T-Mobile (NO 4G AWS band, more limited LTE)
There are a number of people that have compared the two variants and no significant reception differences have been found
MattMJB0188 said:
Can this be done? I ask because I am using the T-Mobile version on AT&T. LTE reception is not bad, it just can be better, especially in low signal areas? Does anyone have any information flashing the G900A modem for T-Mobile? I have searched and can't seem to find anything on this.
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risestar2 said:
Radio and antenna wise, I believe they are the same device specs, so not like a number of years ago where there were antenna differences between them. T-Mobile radio supports all of T-Mobile and AT&T, AT&T radio however only partially supports T-Mobile (NO 4G AWS band, more limited LTE)
There are a number of people that have compared the two variants and no significant reception differences have been found
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Right. I understand that. But what I was asking if we could extract the AT&T modem from the G900A (AT&T Branded S5) and flash it on the T-Mobile S5 (G900T). That way the frequencies would be better optimized.
Now my T-Mobile S5 did pick up Band 4 LTE on AT&T and reception was excellent. This is mostly due to the fact that T-Mobile natively uses band 4 for LTE.
MattMJB0188 said:
Right. I understand that. But what I was asking if we could extract the AT&T modem from the G900A (AT&T Branded S5) and flash it on the T-Mobile S5 (G900T). That way the frequencies would be better optimized.
Now my T-Mobile S5 did pick up Band 4 LTE on AT&T and reception was excellent. This is mostly due to the fact that T-Mobile natively uses band 4 for LTE.
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I doubt that has any effect at all. Frequencies don't get optimized at least not on your end. I think the phone does have a priority list for which bands to use but it automatically switches when one is better than the other.
Sent from my One using Tapatalk
luigi311 said:
I doubt that has any effect at all. Frequencies don't get optimized at least not on your end. I think the phone does have a priority list for which bands to use but it automatically switches when one is better than the other.
Sent from my One using Tapatalk
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I don't know about that. Perhaps it is not "optimizing" but carriers definitely do something to their modems on smartphones to make them work best with their networks. While the T-Mobile S5 works almost flawlessly on AT&T, the AT&T S5 still gets better reception. Perhaps the difference is negligible, but its there.
MattMJB0188 said:
I don't know about that. Perhaps it is not "optimizing" but carriers definitely do something to their modems on smartphones to make them work best with their networks. While the T-Mobile S5 works almost flawlessly on AT&T, the AT&T S5 still gets better reception. Perhaps the difference is negligible, but its there.
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have you compared both side by side?
kawaiichi said:
have you compared both side by side?
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I am comparing my signal with the T-Mobile S5 from what I experienced on the AT&T S5. While signal difference in good reception areas is not noticeable, signal in lower reception areas is much weaker. The AT&T S5 would send texts messages almost 95% of the time at my work. With the T-Mobile S5, I am getting about a 10% success rate on text messages being sent.
slimc84 said:
I am comparing my signal with the T-Mobile S5 from what I experienced on the AT&T S5. While signal difference in good reception areas is not noticeable, signal in lower reception areas is much weaker. The AT&T S5 would send texts messages almost 95% of the time at my work. With the T-Mobile S5, I am getting about a 10% success rate on text messages being sent.
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Yeah that's what I mean. But nonetheless, I still love the phone and this really isn't an issue the majority of the time. Hopefully soon, we can flash an AT&T modem.
MattMJB0188 said:
Yeah that's what I mean. But nonetheless, I still love the phone and this really isn't an issue the majority of the time. Hopefully soon, we can flash an AT&T modem.
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The only way I have been able to increase texts going through successfully is by toggling airplane mode. I guess we will have to use that as a work around.
Having an AT&T modem on the Tmobile variant will make the device better handle connecting to LTE/HSPA networks and the phone will switch between frequencies them more efficiently. Now, I don't know if that's possible without bricking the phone.
daraj said:
Having an AT&T modem on the Tmobile variant will make the device better handle connecting to LTE/HSPA networks and the phone will switch between frequencies them more efficiently. Now, I don't know if that's possible without bricking the phone.
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I think some guy did it with the Note 3. But thing is, the AT&T modem on the S5 has not been extracted.
MattMJB0188 said:
I think some guy did it with the Note 3. But thing is, the AT&T modem on the S5 has not been extracted.
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Extracting the AT&T modem is not a problem I can get it quickly using the stock firmware file. But, still i think it will brick your tmobile s5.
daraj said:
Extracting the AT&T modem is not a problem I can get it quickly using the stock firmware file. But, still i think it will brick your tmobile s5.
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How so? Would it be the same as flashing a T-Mobile modem?
slimc84 said:
I am comparing my signal with the T-Mobile S5 from what I experienced on the AT&T S5. While signal difference in good reception areas is not noticeable, signal in lower reception areas is much weaker. The AT&T S5 would send texts messages almost 95% of the time at my work. With the T-Mobile S5, I am getting about a 10% success rate on text messages being sent.
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There's your answer right there. T-Mobile released a patch today to deal with poor SMS/MMS or texting issues. Doubt it has anything to do with signal.
Flash the latest T-Mobile update and then see it perform as you'd expect.
SeaFractor said:
There's your answer right there. T-Mobile released a patch today to deal with poor SMS/MMS or texting issues. Doubt it has anything to do with signal.
Flash the latest T-Mobile update and then see it perform as you'd expect.
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MattMJB0188 said:
How so? Would it be the same as flashing a T-Mobile modem?
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Well i was looking to this this with my t mobile s5 with no luck. like another guy said, in good signal areas signal doesnt change but i am in a bad signal area a lot and my phone jst doesnt switch frequecies like it should. I been using att on t mobile phones for a while and installing the att modem but with this one im having some trouble. i have the att modem.bin but when flashing it i get a bootloader response error
You're lucky to get an error and the bin file didn't flash! Please read and search more. There are many threads on xda about similar attempt types. Device-specific modem files cannot and should not be flashed on other devices. They are hardware specific and will cause your phone to stop working if you manage to get it to flash.
Setting up ATT APN settings will suffice for those using att Sim in a sm-g900t.
Sent from my SM-G900T using XDA Free mobile app
Commodore 64 said:
You're lucky to get an error and the bin file didn't flash! Please read and search more. There are many threads on xda about similar attempt types. Device-specific modem files cannot and should not be flashed on other devices. They are hardware specific and will cause your phone to stop working if you manage to get it to flash.
Setting up ATT APN settings will suffice for those using att Sim in a sm-g900t.
Sent from my SM-G900T using XDA Free mobile app
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Yes i realize the risk, and I'm actually not too worried about them. I don't at all think the phone will stop working, however I still can't get the modem on here anyway. I have tried the tar, and bin with no luck. If anybody is willing to put something together I'm willing to test it out. Fortunately in my line of work, it wouldn't be a big deal to get another S5.
---------- Post added at 08:06 AM ---------- Previous post was at 08:03 AM ----------
Jtrain88 said:
Yes i realize the risk, and I'm actually not too worried about them. I don't at all think the phone will stop working, however I still can't get the modem on here anyway. I have tried the tar, and bin with no luck. If anybody is willing to put something together I'm willing to test it out. Fortunately in my line of work, it wouldn't be a big deal to get another S5.
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Commodore 64 said:
You're lucky to get an error and the bin file didn't flash! Please read and search more. There are many threads on xda about similar attempt types. Device-specific modem files cannot and should not be flashed on other devices. They are hardware specific and will cause your phone to stop working if you manage to get it to flash.
Setting up ATT APN settings will suffice for those using att Sim in a sm-g900t.
Sent from my SM-G900T using XDA Free mobile app
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I have made all the proper backups. Not to mention I'm not a noob to this, having built a few Roms myself.
Jtrain88 said:
Yes i realize the risk, and I'm actually not too worried about them. I don't at all think the phone will stop working, however I still can't get the modem on here anyway. I have tried the tar, and bin with no luck. If anybody is willing to put something together I'm willing to test it out. Fortunately in my line of work, it wouldn't be a big deal to get another S5.
---------- Post added at 08:06 AM ---------- Previous post was at 08:03 AM ----------
have made all the proper backups. Not to mention I'm not a noob to this, having built a few Roms myself.
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If it's not taking in Odin, then I really don't think its going to work. Odin is like the master of all things Samsung for end users. The S5 has a lot of tampering prevention measurements made by Samsung. It wouldn't surprise me if the bootloader is doing a reference check with the modem to see if the modem matches the bootloader.
Also, I wouldn't go about flashing full ATT tar files to the T-Mobile S5. The partition tables are now different in the Galaxy S5 variants when in previous models they were the same. So flashing the ATT full tar could lead to your download mode being wiped.
What exactly is your problem? When you say "not switching frequencies" what exactly do you mean? Like going from LTE to HSPA+ or HSPA+ to LTE etc.
I have created an xposed module for myself that allows me to quickly switch my network preference at ease using a widget. I may share that once I tidy it up a bit. If your issue is being able to switch between HSPA+ LTE 2G etc then the widget should help you. I only use it to force 4G when in a low 4G environment or to force LTE when in low LTE environment.
BTW: What line of work do you do that you can simply get another S5? I'm jealous
elesbb said:
If it's not taking in Odin, then I really don't think its going to work. Odin is like the master of all things Samsung for end users. The S5 has a lot of tampering prevention measurements made by Samsung. It wouldn't surprise me if the bootloader is doing a reference check with the modem to see if the modem matches the bootloader.
Also, I wouldn't go about flashing full ATT tar files to the T-Mobile S5. The partition tables are now different in the Galaxy S5 variants when in previous models they were the same. So flashing the ATT full tar could lead to your download mode being wiped.
What exactly is your problem? When you say "not switching frequencies" what exactly do you mean? Like going from LTE to HSPA+ or HSPA+ to LTE etc.
I have created an xposed module for myself that allows me to quickly switch my network preference at ease using a widget. I may share that once I tidy it up a bit. If your issue is being able to switch between HSPA+ LTE 2G etc then the widget should help you. I only use it to force 4G when in a low 4G environment or to force LTE when in low LTE environment.
BTW: What line of work do you do that you can simply get another S5? I'm jealous
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Yes I definitely wouldn't go as far as flashing att tar.... And sometimes when I lose signal it takes a heck of a lot longer to gain it back ad t mobile basebands as opposed to art ones. I get another phone about every month and a half to two months so I've definitely tested around on and and also yes when it switches from lte to hspa+ etc it doesn't switch it like any att phone I've had. Takes longer.
And as far as my line of work goes I just mean that I would be able to afford another one if this one broke.
Jtrain88 said:
Yes I definitely wouldn't go as far as flashing att tar.... And sometimes when I lose signal it takes a heck of a lot longer to gain it back ad t mobile basebands as opposed to art ones. I get another phone about every month and a half to two months so I've definitely tested around on and and also yes when it switches from lte to hspa+ etc it doesn't switch it like any att phone I've had. Takes longer.
And as far as my line of work goes I just mean that I would be able to afford another one if this one broke.
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Might be taking longer due to the different radios. Weird though cause if it has an ATT sim and ATT APN configuration, it shouldn't have any delay and function like an ATT phone.
And yeah I'm jealous you can afford a new one if you broke this one takes me a year to save up in order to buy my next upgrade.